{"title":"Reductive amidation of polylactic acid with nitro compounds using nickel based nanocatalysts†","authors":"Jie Gao , Lan Zhang , Long Luo , Ning Wang","doi":"10.1039/d4gc05635c","DOIUrl":null,"url":null,"abstract":"<div><div>Here, we report carbon-supported Ni-nanoparticles as reusable catalysts for reductive amidation of nitro compounds with polylactic acid (PLA). These Ni-nanoparticle-based catalysts are prepared by synthesizing nickel-diamine ligands on a carbon support and subsequent pyrolysis under argon. Applying an optimal Ni-nanostructured catalyst, amidation of PLA with different nitro compounds in the presence of molecular hydrogen was performed to access amide products. Regarding improving the reaction efficiency, H<sub>2</sub>O plays a positive role in the PLA hydrolysis process for lactic acid monomer production. Meanwhile, D<sub>2</sub>O cannot promote PLA hydrolysis due to the lack of H atoms, which is vital for forming lactic acid monomers.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 6","pages":"Pages 1723-1728"},"PeriodicalIF":9.3000,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/gc/d4gc05635c?page=search","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Green Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/org/science/article/pii/S1463926225000317","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
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Abstract
Here, we report carbon-supported Ni-nanoparticles as reusable catalysts for reductive amidation of nitro compounds with polylactic acid (PLA). These Ni-nanoparticle-based catalysts are prepared by synthesizing nickel-diamine ligands on a carbon support and subsequent pyrolysis under argon. Applying an optimal Ni-nanostructured catalyst, amidation of PLA with different nitro compounds in the presence of molecular hydrogen was performed to access amide products. Regarding improving the reaction efficiency, H2O plays a positive role in the PLA hydrolysis process for lactic acid monomer production. Meanwhile, D2O cannot promote PLA hydrolysis due to the lack of H atoms, which is vital for forming lactic acid monomers.
期刊介绍：
Green Chemistry is a journal that provides a unique forum for the publication of innovative research on the development of alternative green and sustainable technologies. The scope of Green Chemistry is based on the definition proposed by Anastas and Warner (Green Chemistry: Theory and Practice, P T Anastas and J C Warner, Oxford University Press, Oxford, 1998), which defines green chemistry as the utilisation of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products. Green Chemistry aims to reduce the environmental impact of the chemical enterprise by developing a technology base that is inherently non-toxic to living things and the environment. The journal welcomes submissions on all aspects of research relating to this endeavor and publishes original and significant cutting-edge research that is likely to be of wide general appeal. For a work to be published, it must present a significant advance in green chemistry, including a comparison with existing methods and a demonstration of advantages over those methods.
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